Micro-cable reinforced geopolymer composite for extrusion-based 3D printing

By Guowei Ma, Zhijiang Li, Li Wang, Gang Bai. Materials letters (General ed.), 2019

168 citations recorded by the source corpus.

Abstract Geopolymer has been applied to accommodate the rapid development of 3D printing in civil engineering practices and contributed this technique to reach its maximum eco-friendly potentials by eliminating the use of Portland cement. However, inherent problems with 3D printing concrete lie in the low tensile strength and poor ductility due to non-reinforcement, which greatly limit the application of 3D printing materials and structures. Hence, this study experimentally explores the feasibility of directly entraining a continuous micro steel cable (1.2 mm) during filaments (12 mm) deposition process, forming a reinforced geopolymer composite material. Three different printing path configurations are deigned to verify the applicability of micro-cable reinforced geopolymer composite for extrusion-based 3D printing. Flexural bending capacities of the proposed composite is measured and evaluated through four-point bending test. The results prove the well bonding and coordination of the micro-cable and geopolymer. Significant improvement of mechanical strength, toughness and post-cracking deformation of geopolymer composite are demonstrated.

Subfields: Automotive Engineering, Building and Construction, Civil and Structural Engineering

View Paper: https://www.semanticscholar.org/paper/40f576dbcfef69ff8e9ab77602434dad892a0e5a

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Automotive Engineering

1. Shaodan Hou
2. Jun Ye
3. Jianzhuang Xiao
4. Z. Duan

In Building and Construction

1. Z. Duan
2. Jianzhuang Xiao
3. Shaodan Hou
4. Jun Ye
5. Jorge de Brito
6. Chi-Sun Poon

In Civil and Structural Engineering

1. Z. Duan
2. Shaodan Hou
3. Jun Ye
4. Jianzhuang Xiao
5. Jorge de Brito
6. Chi-Sun Poon

Citations in the corpus

• Integrating reinforcement in digital fabrication with concrete: A review and classification framework (2021, unknown): “entrainment [39,44,77] In-process reinforcement method.”
• A review of 3D printed concrete: Performance requirements, testing measurements and mix design (2020, methodology): “A significant range of standard deviation of compressive strength was obtained, which was because the different printing paths and fibers played a great role in the anisotropic mechanical properties of 3DPC [89,90].”